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ST6215CB3 数据表(PDF) 35 Page - STMicroelectronics |
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ST6215CB3 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 70 page ![]() 35/70 ST62T15C/T25C/E25C I/O PORTS (Cont’d) 4.1.3 I/O Port Option Registers ORA/B/C (CCh PA, CDh PB, CEh PC) Read/Write Bit 7-0 = Px7 - Px0: Port A, B and C Option Regis- ter bits. 4.1.4 I/O Port Data Direction Registers DDRA/B/C (C4h PA, C5h PB, C6h PC) Read/Write Bit 7-0 = Px7 - Px0: Port A, B and C Data Direction Registers bits. 4.1.5 I/O Port Data Registers DRA/B/C (C0h PA, C1h PB, C2h PC) Read/Write Bit 7-0 = Px7 - Px0: Port A, B and C Data Regis- ters bits. Note: X = Don’t care 70 Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0 70 Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0 70 Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0 35 |
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